Analysis
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max time kernel
78s -
max time network
87s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22-06-2024 12:29
Static task
static1
Behavioral task
behavioral1
Sample
0220112765fa22ba3be7cd05353b6bf0_JaffaCakes118.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
0220112765fa22ba3be7cd05353b6bf0_JaffaCakes118.dll
Resource
win10v2004-20240508-en
General
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Target
0220112765fa22ba3be7cd05353b6bf0_JaffaCakes118.dll
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Size
404KB
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MD5
0220112765fa22ba3be7cd05353b6bf0
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SHA1
31a3aa911f92702ce670e71086b904999e0d5612
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SHA256
0dcc0c3caa0fd9160c8576e09df6ab84da3c7d2309100357b22ebcf5c7c2a4e0
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SHA512
ca6eee46455ad556ef7b0e6249fdb37999c397815b963a8faad03a70a3c15cc11bedd6994ecf3592787c0c81b6659520e855274dcbed970fca02fc1991f09986
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SSDEEP
6144:6opJ0HKwFjTI/V19/XNa6JGH5TOtyHxT9/M+uwYpWpqQDELgnXbE+xNa+QpO9pf1:5JbNvrWqvcYM5APy27Nc1IAaWH
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\jcfiqmhfrygtkul = "C:\\Windows\\System32\\regsvr32.exe /s \"C:\\Users\\Admin\\AppData\\Local\\Temp\\0220112765fa22ba3be7cd05353b6bf0_JaffaCakes118.dll\"" regsvr32.exe -
Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{C9ADC6E9-CB19-348D-07EE-9E1325F6B4A3}\NoExplorer = "1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{C9ADC6E9-CB19-348D-07EE-9E1325F6B4A3} regsvr32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\MINIE iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{15BBBD95-3093-11EF-9519-F6C903454AA3} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "425221253" iexplore.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C9ADC6E9-CB19-348D-07EE-9E1325F6B4A3}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0220112765fa22ba3be7cd05353b6bf0_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C9ADC6E9-CB19-348D-07EE-9E1325F6B4A3} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C9ADC6E9-CB19-348D-07EE-9E1325F6B4A3}\ = "incomeland browser enhancer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C9ADC6E9-CB19-348D-07EE-9E1325F6B4A3}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C9ADC6E9-CB19-348D-07EE-9E1325F6B4A3}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4680 iexplore.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 4680 iexplore.exe 4680 iexplore.exe 4292 IEXPLORE.EXE 4292 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1020 wrote to memory of 4148 1020 regsvr32.exe 80 PID 1020 wrote to memory of 4148 1020 regsvr32.exe 80 PID 1020 wrote to memory of 4148 1020 regsvr32.exe 80 PID 4680 wrote to memory of 4292 4680 iexplore.exe 83 PID 4680 wrote to memory of 4292 4680 iexplore.exe 83 PID 4680 wrote to memory of 4292 4680 iexplore.exe 83
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\0220112765fa22ba3be7cd05353b6bf0_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1020 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\0220112765fa22ba3be7cd05353b6bf0_JaffaCakes118.dll2⤵
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4148
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C:\Program Files (x86)\Internet Explorer\ielowutil.exe"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding1⤵PID:1440
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4680 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4680 CREDAT:17410 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4292
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